Facebook now has 100 million mobile users, according to a blog post by the social network's VP of user growth, mobile and international Chamath Palihapitiya.

"This usage happens on almost every carrier in the world and comes less than six months after we announced 65 million people on Facebook Mobile," he explains.

That figure includes people using Facebook's various mobile apps, as well as its mobile websites. The latter were recently redesigned the latter.

Meanwhile, Facebook is also being used via SMS in 32 countries, according to the blog post, which says the company is working with 80 operators on that.

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